<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 靠右的按钮 -->
      <page-tools>
        <template v-slot:after>
          <!-- 添加的方法里面有两个参数，第一个参数为type的值， type代表的添加的访问权限 第二个参数是一级节点的pid -->
          <el-button type="primary" size="small" @click="addPermission(1, 0)">添加权限</el-button>
        </template>
      </page-tools>
      <el-card>
        <!-- 表格 -->
        <el-table border :data="list" row-key="id">
          <el-table-column prop="name" label="名称">
            <!-- <template v-slot="{row}">
              <i class="el-icon-folder-opened"></i>
              <span>{{ row.name }}</span>
            </template> -->
          </el-table-column>
          <el-table-column prop="code" align="center" label="标识" />
          <el-table-column prop="description" align="center" label="描述" />
          <el-table-column align="center" label="操作">
            <!-- type 为1时时功能访问权限，2代表是功能权限，是功能权限不应该再进行添加了，添加按钮得隐藏 -->
            <template v-slot="{row}">
              <el-button v-if="row.type === 1" type="text" @click="addPermission(2,row.id)">添加</el-button>
              <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
              <el-button type="text" @click="delPermission(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
    </div>
    <!-- 放置一个弹层 用来编辑新增节点 -->
    <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="btnCancel">
      <!-- 表单 -->
      <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
        <el-form-item label="权限名称" prop="name">
          <el-input v-model="formData.name" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model="formData.code" style="width:90%" />
        </el-form-item>
        <el-form-item label="权限描述">
          <el-input v-model="formData.description" style="width:90%" />
        </el-form-item>
        <el-form-item label="开启">
          <!-- active-value 1代表开启，inactive-value 0为关闭 -->
          <el-switch
            v-model="formData.enVisible"
            active-value="1"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small" type="primary" @click="btnOK">确定</el-button>
          <el-button size="small" @click="btnCancel">取消</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import { delPermission, getPermissionList, addPermission, getPermissionDetail, updatePermission } from '@/api/permission'
import { tranListToTreeData } from '@/utils/index'
export default {
  data() {
    return {
      list: [], // 权限列表数组
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      } // 表单校验规则
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑' : '新增'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    async getPermissionList() {
      const res = await getPermissionList()
      // console.log(res)
      // 将数组转换成 带children 的树形结构
      this.list = tranListToTreeData(res, '0')
    },
    // 添加权限的方法
    addPermission(type, id) {
      this.formData.type = type
      this.formData.pid = id // 要添加子节点的pid = 父节点id
      this.showDialog = true
    },
    // 编辑
    async editPermission(id) {
      // 点击编辑进行数据回填
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    // 删除
    delPermission(id) {
      this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        return delPermission(id)
      }).then(() => {
        this.$message.success('删除成功')
        this.getPermissionList()
      })
    },
    btnOK() {
      this.showDialog = false
      // 点击确定进行手动校验
      this.$refs.perForm.validate().then(() => {
        // 如果验证通过走.then
        // 点击确定。区分是新增还是添加
        if (this.formData.id) {
          return updatePermission(this.formData)
        }
        return addPermission(this.formData)
      }).then(() => {
        this.showDialog = false
        this.getPermissionList()
        this.$message.success('添加成功')
      })
    },
    btnCancel() {
      this.showDialog = false
      this.getPermissionList()
    }
  }

}
</script>

<style>

</style>
